To register a callback to a 'static' function within the same class, consider a syntax like the following:<code>$callback = array (__CLASS__, "my_function_name");xmlrpc_server_register_method($xmlrpc_server, "my_function", $callback);</code>Doing it this way makes it easier to rename your class later.

Remember that you can't do like Chrigu and Nate said if you want to add methods from a static class (Hence you can't create any instances of it).A workaround is to create lambda functions calling themethods: